Machine for making hair-pins.



I. H. SISSON. MACHINE FOR MAKING HAIR PINS.

2. il 0u 1 DI r. m d 8 t u 8 Lb a D.. O. 1 9 I 5. l TM C o D E L I F N 0 I T A 0 I L v.. D.. A

a r@ n@ 9 1l D, 1i

10 SHEETS-SHEET 1.

I. H. SISSON.

MACHINE FOR MAKING HAIR PINS.

APPLICATION :FILED 00T.15, 1910.

1,01 9,375. Patented Maz; 5, 1912` l0 SHBETS-SHBET 2.

I. H. SISSON. MACHINE FOR MAKING HAIR PINS. APPLICATION FILED 001.15, 1910.

1,019,375, Patented Mar.5,191z.

l0 SHEETS-SHEET 3.

I. H. SISSON. .momma PoR MAKING HAIR PINS. APPLICATION FILED 00T.15, 1910. 1,01 95375 Patented Mar. 5, 1912.

l0 SHEETS-SHEET 4.

I. H. SISSON. MACHINE POR MAKING 'HAIR PINS.

APPLICATION FILED 00T.15. 1910. 1,01 9,375, Patented Mar. 5, 1912.

1'0 SHEETS-SHEET 5.

I. H. sIsSoN. I MACHINE FOR MAKING HAIR PINS.

APPLIUATIGN FILED OO'I'l, 1910.

Patented Mar. 5, 1912.

10 SHEETS-SHEET 6.

ll o

I. H. SISSON.

MACHINE FOR MAKING HAIR PINS.

APPLICATION FILED 001115, 1910.

1,@19,3?45 Patented Mar. 5, 1912.

10 SHEETS-SHEET 7.

I. H. SISSON. MACHINE PoR MAKING HAIR PINS APPLIOATON FILED 00T.15, 1910.

Patented Mar. 5, 1912.

10 SHEETS-SHEET 8.

:mmv-625m: A

I. H. sIssoN. MACHINE FOR MAKING HAIR PINS. APPLIOATIOH FILED 0GT.15, 1910.

Patented Mar. 5, 1912.

10 SHEETS-SHEET 9.

I. H. SISSON.

MACHINE PoR MAKING HAIR PINS.

APPLICATION FILED OGT.15,1910.

Patented Mar. 5, 193124 10 SHEETS-SHEET 10.

To all whom zum,

Fatemi, No. 5i slums. be f. L whim more partic- Jmmug the s; den- Y tu mm'hf u i typ@ ai la of whch con shorter camini 9 with a hump pm vic@ of the. Ohm" ing mmhnngm the supply wvl l Smid cfdug n: 25 Wh gippng' mm vif@ navel fum?. ai" conveying he pos'on for H1@ ,m plm'de Mmmm fm: in 3G of file reznl'u Egg; :1nd i iis upper por* ut im vmining down me Hi@ f vpc of lmiz'- 70 :Amber nspocis um',

ling' dem m 80 @Non Figure its n sid@ @lt-- Y uf fue machine, dm ma' 'im' Siww'hcmnghe wim, mw"

wim in Unc 100 omitted. Fig. l is ay fragmentary perspective view on a reduced scale of the casing for the cutting spindles. Fig. t6 is a detail sectional view of one of thc cutters and its associated gear. showing the manner in which the cutters sever the wire. Fig. 1T is a sectional detail showing the manner of mounting the outer end of the central stationary guide tube. Fio. 1S is a fragmentaryv top plan view, partly in section. showing the friction mechanism for feeding the wire after it has been severed. Fig. 19 is a fragmentary perspective view of said friction feeding mech- Atical sectional view on a reduced holder.

anism shown on an enlarged scale. Fig. Q0 is a fragmentary side elevation partly in section of another portion of said friction feeding device and showing more particularly the manner of maintaining the revoluble member under spring tension. Fig. 2l is a fragmentary perspective view of the mechanism for forming the center leg of the hair-pin. Figi 22 is a perspective view of the holder for the top bending dies and cen- `ter plunger. Fig. 2.3 is a top plan view of the rotary twisting chuck. Fig. is a fragmentary perspective view of the lower end of the center plunger. Fig. f2.3 is a, verscale of the rotary twisting' chuck. 2G is a fragmentary .perspective view of one ot' the chuck jaws. Fig. 27 is a perspective view of the main wire carrier and actuating meehanism. Fig. 28 is a front elevation` partly in section. on an enlarged scale of said carrier, the various positions of the carrier being shown in dotted` lines. F m is a cross sectional detailed view taken of 2S. Fig. SO is a similar on lines 30, 30 of Fig. 28. are perspective views on an en. of the crimping dies. .i tive View of the front crimping Fig. 34 is a similar vie. crimping die and holder. Fig. spective view on an enlarged scale of the le bending and crown dies showing also t center plunger and holder. 36 ii a tached perspective view showing one o; crowning dies and holder. Fig. 37 is a detail perspective view of the center plunger and holder. Fig. 38 is a vertical sectional view on an enlarged section taken on lines 38., 35 of Fig. 37. Fig. 39 is a fragn'ientary front elevation showing the manner of forining the initial or center' bend in the. wire blank. Fig. 40 is a view similar to Fig. ft) and showing the manner of twisting the center leg. Fig. 4l is a similar view showing the manner of bending down the outer Fig. 42 is a sectional view showing the manner of forming the hump and up-turned end of .the -center leg. Figs. 43 and t-t show the hair pin in various stages of formation and F igs. 45 and 46 are front and side' elevations Fig. i7 is a detail view.

standards 2 which serve to support various parts of the machine hereinafter described. Sit the rear end of the machine upon the bed plate is secured by means of a bracket 3, `a reel it. journaled on a pin 5 carried by the bracket and preferably inclosed in a housing G. Upon this reel is mounted a coil of wire which is fed through a straightening device T of well known construction, to the main, feeding mechanism designated as a whole A.. rthe straightening device 7 is kept in continuous rotation by a driving belt 7 leading from'the pulley 72l which is secured to the upper-rear shaft 7. The manner of driving this shaft- 7 will be hereinafter described. This feeding mechanisni comprises a feeder carriage 8 mounted to slide longitudinally upon a suitable track-way 9 carried by one of the standards 2 andassociated brackets. rEhe track-way is provided with inwardly beveled edges 9 having dove-tailed like connection with the legs l0 of the carriage. provided with a vertically movable top clamping member ll having a stud extension i2 which is secured by set screws 13 to rocker le la; journaled on a screw pin l5, mounted in an arm lt secured to the The free end of this arm 14 is forced upward by a coiled spring is to bring the shoe ll into clamping :vement with the wire. The latter preferauiy extends through' a guide 18 secured to the carriage. The front side of the bracket i9 which supports this feeding mechanism is provided with a dove-tailed groove 20 in which is adjustably mounted a stop 2l. 'ilo the opposite end of the guideway :20 is similarly secured another stop 2l. To the carriage 8 is pivotally secured .at 22 a lever 23 adapted to interlock with the rocker arm le. To this end the head of the lever 23 is provided with a beveled portion 24 in order thaty it may more readily enter the rotchcd portion of the arm 14. iilhen the feeder is in action the lever and rear arm are unlocked. At or about the instant the carriage arrives at the forward end of its stroke7 the lower part of the lever engages the adjustably mounted frontstop or dog 2l causing the upper part of the lever to engage and interlock with the arm. This action deprcsses the larm and lifts lthe shoe il out of clamping engagement with the wire.` llilhen the feeder is rthis carriage is i 1,019,375 y I B thus released from the Wire, it-returns to the end of its rearward stroke, the lever 2 3 at the same instant engaging the rear stop 21 and unlocking the members, thereby freeing the spring 17 which forces the rocker arm upwardly and causes t-he shoe to frictionally engage and clamp the wire. The unlocked'position is shown in` dotted lines in Fig. 9.

To prevent the wire from. buckling I provide an auxiliary clamping or binding de? vice, designated as a whole 25. This con-4 sists of a fixed base member 26 secured to the 'track 9 and a downwardly spring pressed gripper or jaw 27 between which and the upper face of the hase 2G the wire is fed. Upon the frame is pivoted as shown at 28 a. swinging arni 29, the free end of which carries a. cam roller 30 which is in continuousrolling engagement with a cam disk 31 concentric with a crank disk 32 hereinafter described. Upon the arni 29 is mounted a spring pressed rod 33 which ex tends through the base 26 and actsl upon'the binder or clamp 27. The arrangement is suoli that the raised cam-surface 33 will,

- through the action'of the roll 30 and arm fio 29,- keepthe jaw 27 in open position while the carriage is advancing the wire, correspending, say to one-half the .revolution of 'the cam. On further revolution of the cam the spring pressed jaw will automatically drop into engagement. with the wirev and hold it stationary during the rotation" or back stroke of the feeder. During this latter operation the roller 30 will be riding 0n the surface 34 of the cam. l l

Describing' now'the manner of operating this feeding mechanism andv describing first the. main general .driving element, 'at the right or front end-of the machine is located4 the main driving mechanism designated as a whole B. 'lhismechanism and driving mechanism includes the horizontal primary sha-ft- 35 mounted in suitable bearings 3G having a balance wheel 37, and loose and fast pulleys 38 and 39 respectively. .A driving belt 40 is also provided. This inain shaft is located at the back side of the machineand extends longitudinally toward its left or rear end. At that end of the frame opposite the driv- Aing pulleys, the shaft 35 is provided with a spur gear 41 (see Fig. 2) intermeshing with a larger gear 42 secured to and adapted to rotate the upper cam shaft 43. On this cam shaft is fixed a main barrel cam 32 for actuating the carrierof the feeder. This upper cam shaft 43 extends longitudinally of the machine and has secured to its front end a spur gear 44 which meshes into a similar sized gear 45 secured to the adjacent end of the lower revolving cam shaft 46. The' lower cam shaft 46 is parallel with the shaft 43 and located directly beneath it.A It may be here stated that through these main driv way.

.ing shafts. and connections the various mechanisms for forming the 'several features of the hair-pin are actuated and conmanner: Upon the upper cam shaft 43 issev -cured a miter gear 47 (Fig. 2). 4A similar gear 48 meshes with the gear 47and is fixed toY the shorttransverse shaft 49. This transverse shaft has secured at its front end the crank disk 32. To vary the feed stroke,

in the slot of the disk 32 is mounted a sci-ew 50. having a sliding'nut 51 to which is pivote'd as shown at 52 a rod 53. The latter is adjustably clamped asshown at. 54 to. the relatively long lever 55, fulcruined as shown at 56 to the base of the machine. The upper end of this lever "'35 is jointed to a short.- link 57 pivoted as shown atV 5S to the carriage of the feeder. parts just described is such as toimpart a reciprocating rectilinear' movement to. the feeder carriage. The full lines represent the feeder in advanced position .while the dotted lines indicate its retracted position immediately preceding the next feeding action.

.Frein the foregoing it will be seen that as the shaft 49 is driven by the main driving mechanism above described, the crank arm 55 will be 'actuated and the carriage reciprocated back and forth on its track- At the same tiinethe action of the cam disk 31 is Such as to synchronously operate the ripper finger 27 to hold the wire during t ie'cutti'ng and pointing operations. A

Referring now to the wire severing and pointing mechanisms and referring more particularly'to Figs. 13 to 17 inclusive, a head orcasting 59 for carrying the cutting tools is adjustably secured to the main frame iii order that the cutting tools may be bodily moved longitudinally of the iiia'ehiiie to properl position them to and from the center of t e twisting chuck and coperating center leg dies corresponding with thc lengt-h of the lwire blanks and the different sizes of liair-pins to be produced. In' said casting 59 is mounted a hollow spindle 60 lockedy in alinement with the advancing blank. The latter vextends through a collar or bushing 61 drilled to the gage ofthe wire used and removably mounted iii the rear end of the spindle. The latter iii turn passes through a splitholder or block ('2 secured in the casting and held in position by means ofv a screw 63, as shown in Fig. 17. 'lhe 'opposite or front end of the spindle (30 is The operation of the ,smaller gear 68 'upon the front end of the continuously rotating shaft 69. The manner of driving this shaft will be hereinafter described.

'15 71.-. The opposite end of cach .arm

sitely disposed rocker arms 74, eachhaving at.i ts free end a cam screw. 75- adjustably mounted therein. These cam screws have `continual frietional engagement with the cam surface of the cone shaped extension provided with a .spur gear 76 loosely mounted thereon. To the hub 77 of the gear is keyed, as shown at 78, a. disk or cutter 79. The gears 76 mesh with the stationary gear 65'of the spindle, the arrangement being 4ing through the bushings 61 and at the ..30

suchthat both cutters revolve in unison in one .direction and at the same time revolve bodily around the wire. These cutters are moved t and from each other by means of the cam 71 and camfscrew 75 when' the clutch 70 is operated. The shape of the cutterslis.

such as to completely sever the wire extendsame time properly point the ends as shown more clearly in Fig. 17. A spring 80 connects the free ends of the arms 74 and serves to hold them yieldably in engagement with the cam hub 71. The shaft 60 and associated cutters are driven in the following manner: The upper rear shaft 7l heretofore referred to is driven by a pulley 81 fixed thereto and an associated loose pulley 89.,.the power being transmitted to the belt 83 from any suitable source. Below the pulleys is mounted a sliding rod 84 having abelt shipper for shifting the belt in a well known manner. On this shaft. 7 about midway thereof is mounted a yoke shaped head 85. To the shaft at this point is splined a large bevel gear SG which meshes with a smaller gear 87 securedto the end of the transverse shaft- '09. The `arrangement is such that the beveled gear and heads 85 may be shifted longitudinally on the'shaft 7 thus permitting t-he shaft (S9 to move with the adjustable 1(1p`on the back of the machine is mounted4 igs. 2 and 1 3) a swinging vertical. lever 88Lpivoted between its-ends' as shown at 89 and provided with a roller` 90 which engages a cam drum 91 secured to the shaft 43. The

upperarm-of this lever is connected to a cross head 92 slidably mounted in longitudinally extending ways formed in the supporting bracket 93 secured to the main frame. ,A forwardly projeetin block 94 is 'adjustably' secured in the cross ead 92 and to this block the rear end ortion of the. clutch actuating lever 95 isslldably secured. This arrangement provides means for accurately changing, within certain limits', the degreeV of clutch movements in' an endwise direction. This .clutch lever is also capable of adjustment to 'provide for variations in length of the wire blanks. This lever 95 is fulcrumed at 9 6 and is forked at its' front end as. shown at 97.- This fork or yoke' shaped extension is provided 'with 'pins 98 which engage the groove of the clutch disk n 70. It may be here stated that the headf72 of the shaft 66 is preferably 'inclosed in a cylindrical shell 99, the whole being revo-I luble in a housing formed in the upper extension of the casting 59.

Infceding the wire through the guide tube 60 the predetermined distance-to produce the desired length of blank, the wire enters an alined open groove 101 formed in a laterally movable top guide plate 102 mounted in the upper end of the main frame, which is preferably protected by a stationary cap plate 103. When the wire blank hasA been severed it lies in this groove 101'and is there picked up .and carriedl forwardly by the auxiliary feeding mechanism. This friction mechanism serves to take the severed blank and carry it to the stop' 101 to place the center of the blank in registerwith the twisting chuck. Describing this friction mechanism, to the upper shaft 7 is secured a small beveled gear 105 meshing with a gear 106 (Figs. 2 and 3), the latter being 'secured to the downwardly inclined shaft 107. This shaft carries at its front endV a friction wheel 108. The rim of this Wheel is' beveled as shown in Fig. 19 and isl adapted to engage the exposed upper side of the wire blank which is at that point supported in the grooved periphery of a small idler roll 109 located immediately below the wheel 108. This wheel r108 is maintained in yieldable frictional engagement with the blankby means of a downwardly spring-pressed plunger 110 mounted in a suitable socket 111 secured to the frame and provided with a coiled spring 112. The construction of "the auxiliary blank feeding positioning mechanism is such `that it is capable of 'adapting itself automatically to Wire blanks of varying diameter. r j

. The guide plate 102 .is advanced bodily sidewise or laterally so as to be in proper position relatively tothe vertical center plunger 113 by m'eansof suitable ide moving mechanism. This latter mec ianism comprises an endwise movable horizontal bar 114, cam 115 (Figs. 5 and 18) secured to the shaft 43, and a swinging lever 116 engaging the cam and bar as show n at 117 and 118 p2: respectively. This lever is pivotally mount- 5 ,ed as .shownat ,119. A' spring 120 secured to the supporting bracket as shownl at 121 .serves to keep the bar in such position that '.thelever isnormally in contact with vthe .ff cana-It will vbe apparent that upon each revolution of the shaft 43 vthe platel 102 will be advanced and retracted tospring the wire blank into and out of register .with the cen- `ter plunger 113.-

used, `the machine 1s provided with a series Lwith the given sizes of hair pins to be pro- .Cluced.. Each of these 104 and roller 108 and 1s cut away to permit the friction wheel 109 to engage. the wire.

its roll movesback and -forth bodily in .a lateral direction but the wheel 108 yrotates onlyolritsaxis'. l T-lfe initial forming operation 1eonsistsjin a single loop and at the same time turning down `the upper ends o the outer legportions. To.tl 11s""end the center plunger 113 heretofore referred to holder 123. slidably. mountedt -in avertically .si lower end a pairof laterally separated top bending dies 125. The ends of these dies f when-in coperation-w-ith the central plunger-113 and thepair of anvil members 126 lthe mechanism for forming inthe severed blank, the initial cent-ral bend or loop and the mainframe (Fig. 5) is actuated in the following manner; A cam .Lend of which ispivoted to an arm or crank 131 secured to' a rock shaft- 132 mounted I.in f't-he "upper end of the tuates the holder 124. 'The latter is recessed :zo-' as shown at 134 toreceive the enlarged he'ad l ifithe. arm 133. `As thus construe-ted the holder and its forming 'intermittently.' Similarly .butt `independently thereof. suitably.` timed movements are givento tlie central pl11'nger` l13 in thefol- 'f 'lowing'manner.

""* wise mounted a .cani-135'1- vvhich isengaged In order that various sizes of wire may be of plates-102 having grooves corresponding.

plates also has a stop llhe arrangement is `suchthat the plate with .sponding lugs'- tion the spring i. bending'the blank back upon itself. to form thev 100 p.-t'.o vform has oppositely f disposed grooves 122 4( Fig'. 24) in .its rxgertical faces to receive the`wire. .'lhis. plunger `is removablyfastened in a` movable main holder 124;- seeuring. at its are oppositely-inclinedso as to constitutevvardly the plate 143 is advanced also to bend the-upper ends -of the loop at This holder. 124 is movably fitted in a bracket 127 secured fto 'This holder 124 1'128 is -mountednnfthe cam shaft 4 3 and ugaged by a.cam .roller129 securedV tolthe .ower end of -a rod or link 130, the upper.

bracket 127 Ar" ,lever 1 .arm133 .is secured to the shaft 132 and acdisposed pivotally dies 125-v are' moved Upontr the shaft 43 is likeby a cam roller 136 carried by an adjustable link 137, the upper end of which is secured to a horizontal crank arm 138 pivoted to a short shatlt) mounted in the head 1-27. Io this shaft- 139 is .Fixed a lever arm 140 which engages a slot 14.1 in the holder 123. From the foregoing it will be seen that the two holders 124 and 123 'are intermittently actuated by reason of cam connections just described.

Referring now to the anvil meu1bers'126,

they are-pivoted at their rear endsto a spring pressed lock 142 slidably mounted in andcarriedby a horizontal frame 143. The latter, which is mounted adjacent the arm 114, rides upon a suitable plate 144. and is actuated intermittently -in an endwise direction by a lever 145 engaging at its lower end-a cam 146 secured to the cam shaft 43. In normal `action the member 143 is first retracted until the vinner beveled parts 146a located near its outer end vpass' thecorre- 147 of the then fully advanced and positioned anvils, at which posi- 148 of the block 142 forces the anv'ils apart. The plunger 113 then descending engages the center of the wire blank then supported on the temporarily advanced plate 102 las before stated/ .As'the plunger descends it passes between the adjacent'sides of the anvil carrying 'with it the wire .and thus looping or folding the latter upon itself. .(See Fig.. 39.) The side forining dies 125 then descend-and bend the'lateral portions of the wire, whichY later form the side legs. shown in Fig. 43.

`Whilethe plunger 113 is moving upand thereby through the conjoint'action of the shoulders 147 and 146, forcibly pressing the anvils toward cach other to engage and hold the center leg partwbich hasjust been bent of the blank between the anvils and also at the same time to practically close the space lying-between the adjacentsides of this leg portion. Fig. 21 shows these'anvils in this closed position. .While the bending'dies 125 and the anvils are still in engagement with The blank thus' shaped isl the centerv leg portion, the preceding chuck I hereinafter described, which is in alinementwith'the center leg portion, is moved up- Wardly to receive the lower portion of the center leg between its jaws. v"Describing this .twisting mechanism, a rotary reciprocatory chuck head 149 having a pair-of oppositely mouited clamping jaws 150, is` mounted on a 151. T his shaft extends' downwardly througha bracket 152 secured tothe frame .and is provided at its lowerend with a grooved collar 153 which is in continuous engagement with a reciproeatory-cross head 154 mounted in .a suitable guide-way. This cross headfis shifted by a double armed tubular central shaft' l lever 15.5- actuated by'a 'cam' 156 secured to' the lower cam' shaft46.

The arrangein nt j vmoving the then non-revolving twisting chuck bodily' in a vertical direction." A'

'somewhat similar mechanism is 'u'sed for closing and opening the jaws of.the'revolu ble chuck. To this end anl adjusting screw `157 'is mounted in the lower portion of each jaw 150` and at its inner end ftictionally en- -gages the upper portion of an endwise movable and revolubleA rod 158' extending through the hollow shaft 151; The lower end of this rod 158 is provided with a grooved- 'collar 159,which 'engages 'a vertically movf able cross head 160. AThis cross .hea

actuated lby a lever 161 which coperates with `a cam 1 62 secured to. the ca m shaft 46. As thus constructed the jaws are automatically opened and closed .at proper predetermined intervals to receive and hold edge- 'wise therebetween the-closed central loop.

portion of the blank during the twisting operation and release the saine after it has A been twiste'd. v This, twisting operation '(Figs. 1, 5, 7 and 8) is as follows: An elongated relatively small spur gear 163 is r secured to or integral with the tubular shaft 151 and meshes with a relatively' large gear 164. `|To ,the latter is secured afcentrally disposed spur gear 165 which is driven by anlendwise. shiftable transversely arranged rack 166. -In order to actuate the rack, thus rbtating the shaft 151 through the/gears just described, and thus revolving thechuck, the' rack 4is connectedto a slidably supported frame 167. This frame is actuated. as fol- -loivsz To the shaft 46 is secured a cam 168 which` is engaged by a roller 169 carried byi 50'shown detached in Fig'. 43 remains firmly supported between the anvilsand side forming dies until the then open jawed twisting chl'ick is moved upwardly to receive the cen- -ter leg -as described. 'When the jaws close upon the loop of the blank the chuck is rotated a plurality of turns as limited by the reviously determined movements of the rack 166 and its coperating parts. The upper portion of the vtwo parallel sides o f the blank when thus'twisted together have the form of afdouble helix. Fig. 40 shows the blank thus far formed but still held in the jaws, and Fig. 44 shows the saine detached. {A device is-employedfforninsuring that ust described is for the rotary movement of the, twisting chuck will cease at a predetermined interval.

.This mechanism; comprises a stationary, forwardly extending 'rod (Fig. 5) 176 located adjacent the. rack and having'a-collar 177 fixedthereon. This 'collar is apertured to. receive .thetubular bolt or adjustable -stop 178 through which the small 'sc'rewf--z` threaded stem179 secured to the forward 3 end of the` rackfreely passes. Upon the outer end'portiongfof the -stem'j179 are se-- cured nuts 180 positioned vto contact with the stop 178'during certain portions of the racks stroke to arrest its movement, thereby providing for play or lost motion in the gearing and connections and 'causing the chuck-head to .ceasel its movement, the jaws' ci the latter then registering withthe depending centralloop of the blank. 'The main carrier 182 is slidably'mounted on a fixed horizontal T-piece'183'locked to the f ront side of the machine 'andextending longitudinally thereof. The carrier `is moved back andforth by means of 'a pivoted lever 1811 having a suitable roller' which engages the 'cam` path of the cam 32. Thefree end of this lever' is jointed to a cross head 185 sliding on'fiired' ways 186.l A comparatively-long Spring pressed rod 187 is adjustablyfmounted in and carriedby the crossv head, its opposite end being secured to the carrier 182. The carrier 182 is provided with afi-elatively stationary jaw member 188 and spring pressed movable jaw 189." The car rier frame has ashort extension in front latch 190 adapted 'to be tripped bythe dog 191,' secured to a front rock shaft 192. This rock shaft isprovided at'its rightend with' a short arm or link y193 which is jointed to a spring pressed sliding member 194 havin a .spring 195. This member194- is provide with a roller which frictionally 'engages a' lprovided with a swinging spring resisted the carrier -182, the jaws thereof'beingopen;

has been ei'ected. The 'chuck then4 com.

mences to retreat, at which instant the main'.

is advanced t'o theleft oi'A nearly to the chuck and remains stationaryuntil the twisting of the center leg of the hairpin erence to its dog 191.

jaws and the latch 190 ositioned with reft substantially the same time the cam 181, as before described,

trips the latch and releases the movable -jaw 189. At the `same time the anvils 'and side forming dies-are retracted from their respectlve positions, thereby freeingV the twistedblank and the latter is wholly supported by the jaws of the carriage 182. The mam cam and associated mechanism next ,moves the carrier toward the right or front end of the machine (see corresponding posit-ion indicated by dotted lines in Fig. 28)

- therebyplacing the blank directly under the endwise slidable transverse bars 199,200, -adjustably connected toget-her by a bolt 201.`

mounted in fixed brackets 197 and 198. -The bracket 197- is located in front and supports u `'Ihis construct-ion permits of a very close fao ' extending through and accurate adjustment of the parts so that the crimping 'dies hereinafter described are.

adapted to receive various diameters of N wire. 'The said connected'bars 199 and 200 are concurrently actuated by .an `arm, 202 a suitable slot in'the member 200 and in turn actuated by the -iiirregularly curved lever arm 203 having a cam roller ,204 which engages of a' cam 205, mounted on the lower cam 'shaft 46 (Fig. 6).- The anvil member 206 as heretofore the cam path of -the crowning tools is suitably supported and guided, as shown in Fig. 6, and has a stem 207 which extends through an ear 208 secured to the bar '199. The forward or working end of the anvil 206 is bifur-` 40 cated (Fig. 41) to receive the upperpart of the central leg andalso forms a support for the adjacent portions of the crown or arch. The anvil 206 is spring pressed .by 'means of a spring 210 and is mounted to move endwise in a horizontal plane, its forward or free end'being adapted to yieldably engage a fixed stop 211 and confine therebetween 'the center leg of the pin before the advancing bar 200, carrying the front crimping die' completes its stroke, the anvil lmeanwh: remaining stationary.. During the return or back st-roke the cap member 208 strikes a nut 212,-adjustably mounted on the rod, therebvretractingl the spring pressed anvil and freeing the air-pin.

Describing now the operation of the crowning plungers, which operation takes place while the partly formed blank is held, described, these crowning plungers 213 and the central lunger 214 are mounted in the rear brac et or head` 198. Theplunger 214 is yieldably'suppo'rted endwise in a vertically'moving main holder 216. The latter has two oppositely arranged downwardly' extending. arms 217 pivoted to its lfront face, the a acent lateral sldes of these arms being cut away to clear the head 215 as shown'in Fig. 35., In

bending downward the plain side legs from the posltion indicated in dotted lines 'at the right of Fig. 28. to the position shown in Fig. 41 (after the anvil has been advanced to receive and support the pin thereon) the plunger 214 first yieldably vengages the cen'- lcr part ofthe crown, -followed immediately thereafter by the simultaneous'action of the lateral -bendin and crowning tools- 218 which engage t e adjacent parts of the outwardly spread legs f the pin and gradually bend them downwardly until they stand substantially parallel in a 'vert-ical plane,

the tools at the same time completely formmg or shaping the crown.

The pivoted tool carrying 'arms 217 heretofore referred to are provided with ad justable side springs 218.'arranged to impart a considerable degree of resistance against the arms while the legs are -being bent, corresponding with the thickness and stiiness of the wire used. The device also determines the 'amount of separation or divergence .to-be given. That is to say the side legs of the hair pin diverge slightly toward their lower end, as shown in Fig. 46. The resistance or tension of the springs 218 is controlled by two `adjusting screws 219 mounted in oppositely arranged ears extending from" the vertical sides of the bracket 198.

-Describing now the manner of actuating the holder'216 which carries. the plungers 218 and 214, a rocker arm 220 is secured to .a 'short rock shaft 221 mounted in a bracket 198 and has its headed end seated in an opening 222 in the .holder 216. A similar arm' 223 is secured to the front end ofthe rock shaft and is jointed to a vertical link 224. This link 224 is provided with a yoke afm 225 having a cam roller 226 which enages a cam 227 mounted on the upper cum shaft 43 (Figs. 2 and-3). From the foregoing it will be seen that the connections last described impart vertical reciprocatory movement to the` plungers as determined-by the shape of the cam path. It may be here stated that just prior' to the completion of the leg bending operation' by the plungcrs 213, the main carrier is released from the .center leg of the then supported pin and moved toward `the left and repositioned contiguous to the chuck, the guide plate 102 being moved forwardly at substantially the same time to place the newly severed blank stant the descending tools 203 'engage thecam 181 and associated parts moves the rock shaft 192 an angular distance, thereby causing a dog 228 .to engage a pivoted spring finger 229 (Figs. 29 and 30) bodily movable with the carrier, (the latter then being in its extremely advanced position) thus forcibly opening the movable jaw member 189, the said latch 190 at the same time springing upward and engaging the back of the lower arm of the jaw member (Fig. 29) land maintaining it in the open locked position until the latch is again tripped by the action of the cam 181 and associated parts hereinbefore described. After the blank has been operated upon as described, it is then subjected to the corrugating and humping operations, the latter operation forming one of the salient featuresof thepresent invention. Referringmore particularly to Figs. 6 and 31 -to 34, Vthe horizontal endwise movable bar 200 heretofore described has the front crimping die or tool 230` removably secured therein, the companiondie member 231 being Se-- cured in the front end of the endwise slidable rear bar 232, the latter beingslidably mounted on the main frame. This rear bar 232 is cut away to receive a short bar 233,

, the two being adjustably connected by a bolt 234, thereby adapting them to be`ac'tuat-ed' in substantially the same manner as the bars 199 and 200 heretofore described, The I crimping dies are mounted immediately below and contiguous to the under side of the anvil member 206 and vcapable of movement toward and from each other whileA the anvil remains stationary, as in supporting the pin. -The .working devices of the dies 230 and'231 are provided with transverse ribs and grooves 235 and- 236 respectively, the ribs `of one die .fitting the grooves of the opposite die. In other words the members constitute -inale and female dies. Vhen thel uncrimped hair-pin -is supported on the anvil, as before stated,- the side legs extend downwardly and as the -two dies advance toward each other they engage and clamp the adjacent portions of the side legs of the pin between them and bend the wire, thus producing the crimps or -corrugations in the side legs of t-he pin, as lndicated clearly in Figs.

""45, 46 and 47.

spo

` end of the hair-p invwhich orms one of --thel The working-face of each die .is providedl centrally with a vertical recess 237 1n which is removably mounted a relatively'narrow die 238. These central dies, of which there are one in each of the die members 230 .and 231, form the humping dies. The construc tion of the` humping dies is shown more clearly in Fig. 47 and these dies are so arranged as to form the hum and turned-up salient characteristics of the hair pin of the patent heretofore referred to. It will be noted that the side legs are corrugatedat the same time that the lower endof the central leg is provided with the` hump and upturned end.

The rear crimping and hump forming die Aholder 232 is actuated in the following. manner: A lever 2,39 is pivoted as shown at240` to the main frame and is provided with a head 241 engaging a slot in the die 233. The lower end of the lever 239 is provided vwith a cam roller which engages the cam 242 mounted on'the lower cam shaft 46. The construction and manner `of operation. of these parts being substantially the same as the operation of the opposite die holder 200. The act of retracting the two .die holders simultaneously operates and separates p the crimping and humping dies and at the same time withdraws the anvil from the thus completed hair pin, the latter then automatically dropping .into a suitable receptacle, below.

As-heretofore stated, my machine is adapted for makin hairins of various sizes and of various diameters of wire. The several dies employed are constructed 'to beinter-A changea ly mounted, as well as are f other parts which it is 4not necessary to refer to in detail. v From the foregoing it will be seen that the machine automatically takes 'a roll loffvvire, severs it into blanks off' predetermined length, points tlie same and then bends and 'forms the blank into the complete hair pin and automatically drops it. The construction is such that' not only. may the machine beoperated with a maximum out-put and minimum. expense, but the various coperatingparts lhave been foundin practice to operate reliably and with comparatively little wear. The features of adjustment are particularly important inasmuch'as'it iS relativelyexpensive to have different machines for the various sizes of hair-pins.

The operation of the mechanism will b e understood from a careful reading ofthe foregoingdescription. 'It may, however, be' briefly described as follows: A supply- `of wire ofdesired diameter/is put on the reel and its en'd fed through the straightening device to theinitial feeder mechanism. The feederjcarriage carries the wire forwardly 'to the cutters. where it is then gripped by the :binder and thewire, severed into the blank of desired length. This blank, which 'is -no'w in the movable guide plate, is actuated by the friction secondary, feed. so that v,the/center of the blank is in alinement with then retracted and the twisting chuck mechanism seizes the central bend of the leg, twisting the upper end of the same to form its helical portion. After t-his twisting operation the central leg is released from the chuck head. The blank is then subjected to the crowning and outer leg forming operations shown in Fig. 4l. Finally the outer legs are corrugated and the crimped portion and turned up end formed on the central loop 'and the, pin automatically fed from the machine. Itis,'of course, understood that during-these operations the pin is held by the various gripper mechanisms in order that the blank may be held steady while the various forming operations are performed.

In its broader aspects the invention is not limited to formingthe exact type of hairpin'here shown although it is more partielllarly adapted for the same, particularly for' forming the central leg and hump. Accordingly the invention is not limited to the details of construction shown except as set forth in the appended claims. I claim as my invention:

l. In a machine for. making hair-pins, the combination with mechanism for feeding wire blanks, of mechanism for bending each blank centrally into an initial loop portion,

mechanism for bending the free upper ends `bf said loop portion downwardly into substantial parallelism with the closed lower lend of said loop'portion to form the outer legs, and mechanism ier twisting said closed loop .at its juncture wit-h said outer legs.

l2. In a machine for making hair-pins, the combination with mechanism for feeding wire blanks, o1 n'iechanism for bending each blankcentrally into an initial loop portion,

mechanism for bending the free upper ends of said loop portion dowim'ardly into substantial parallelism with the closed lower end of Said loop port-iort form the outer legs, mechanism for twisting said closed loop at its juncture with said outer legs, and

- mechanism for forming a hump in said central leg.

3. In a machine for making hair-pms, the combmatlon w1th mechanism for feeding wire blanks,lof mechanism for bending each blank centrally into an initial loop portion, mechanism for bending the free upper ends of said loop portion downwardly into substantial parallelism with theclosed lower end ofsaid loop port-ion to form the outer legs, and mechanism'for tightly closing the upper end of said loop portion at the juncture with said outer legs to,I form the central leg.

4. In a machine for making hair-pins, the combination with mechanism for feeding wire blanks, of mechanism for bending each blank lcentrally into anV initial loop portion, mechanism for bending the free upper ends of said loop portion downwardly into substantial parallelism with the closed lower end of said loop portion to form the outer legs, mechanism for tightly closing the upper end of said loop portion at the juncture with said outer legs to form the centralleg, and mechanism for forming -a hump in said central leg .below the closed upper end thereof.

In a machine for making hair-pins, the combination with means for feeding stock to the cutting device, said means comprising a reciprocatory carriage having a clamping.device, of a pair of cutters, binding mechanism for holding the stock during the operation of cutting, mechanism for bending the severed blank upon itself and for bending down the upper endsof said looped blank whereby the blank is initially formed into a central and outer legs, mechanism for twisting the upper end of said central leg, mechanism for crowning the outer legs and bending them into substantial parallelism, all of said operations being carried on automatically a'nd synchronously. y 6. In a machine for making hair-pins, the combination with 'mechanism for severing a roll of stock into blanks of predetermined lengths, mechanism for initially forming said blank into a central loop and onteileg portions,` mechanism for twisting the upper end of said central loop, mechanism for crowning said outer leo' portions and bending them down into substantial parallelism, mechanism for forming a hump portion in the lower end of said central leg portion, said operations being carried on automatically and synchronously.

7. In a machine for making hair pins, the

combination with mechanism for feeding wire blanks, of mechanism for bending each blank centrally into an initial loop portion. mechanism for bending the free upper ends of said loop"Y portion downwardly into substantial parallelism with the closed lower end of said loop portion to form the outer legs, mechanism for tightly closing the upper end of said loop portion at the juncture with said outer legs to form the central leg, and mechanism for forming a hump and an upturned end in said central leg.l

8. In a machine for making hair-pins, the combination with mechanism for severing a rollof stock into blanks of predetermined length, cutter mechanism, initial loop forming and leg bending mechanisms, mechanism for twisting the upper end of the said initially formed loop portion, mechanism for crowning the outer leg portionsand bending the same downwardly int-o substantial parallelism, mechanism for corrugating the outer leg portion and for forming a hump in said central portion, and feeding mechansmfor conveying the blank to the operatof wire, of an alining central tube through ing mechanisms, all of said mechanisms being operated automatically and synchronously. I

t). In a machine for making hair-pins from a continuous length of wire, the combination ,of devices for intermittingly feeding the wire and severing it into blanks or units, devices for forming in the unit an elongatedtwisted loop adapted for forming the crown or head of the pin and bending the t-wo opposed freeend portions of the unit to produce the outer or side legs 'of the pin, mechanism for transferring the unit from-'said twisting device and positioning it so as to be `acted upon by the crowning and bending means, and mechanism forproducing a bend or humpi in the said center leg portion before the pin is discharged from the machine.

10. ln a machine of the character described, the combination with automatically operating mechanisms for feeding, holding and releasing the free end portion of a coil which the wire is advanced, a pair of laterally separated combined wire-severing and pointing cutters,` means for rotating the cutters on their axes, mechanisinfor rotating the cutters bodily 'around the positioned stati'onary wire, means for simultaneously moving the revolving cutters toward each other so as to engage and sever the wire and at the same time point its adjacent ends, and means for temporarily returning the cutters to their normal separated position.

ll. ln a machine of the character described, "the combination with a suitably mounted, non-revoluble central tube, and means for feeding a wire longitudinally therethrough, of a pair of positively driven revoluble cutters having thegwire positioned between the adjacent rim portions thereof, a revoluble head having the cutters arborsl or spindles. tiltingly mounted therein, and mechanism for intermittently moving the cutters nearer to or farther from the axis of the wire, for the purpose described.

l2. ln a'machine for forming wire into hair pins, having a central leg and two outer legs, the combination with feeding' mechanism, et' cutters for severing the wire into blanks of predetermined length, plunger mechanism for forming vdie initial loop in the blank, bending diesfor forming the outer legs of the hair pm, and mechanism for twisting sai-d initial loop to form the central leg, said. operations being carried on in properly timed relation.

13. in a machine forforming wire into hair pins, having a'ccntral leg and t-wo outer legs, the combination with feeding mechanism, of cutters for severing thcwire into blanks'of predetermined lengtlnplunger mechanism for forming the initial loop Leraars in the blank, bending dies for forming the outer legs of the hair pin, mechanism for twisting said initial loop to form the central leg, and means for forming a hump portion-in said central leg, said operations being carried on in properly timedrelation.

14. In a--machine of the character described, the combination of a main wirefeeding mechanism, a fixed frame having tools movably mounted therein for' bending the wire preparatory to forming the center leg of the hair-pin, and means, including positively -revoluble combined severing and pointing cutters, capable of adjustment bodily longitudinally of the machine, and dis posed intermediate the saidV frame and wirefeeding mechanism, whereby the dist-ance between the cutters and the center-of the frame may be changed, as desired, toy correspond withv wire units varyingy in length.

l5. In a machine of the character described, the combination of a fixed frame having tools movably mounted therein for` bending thel wire, a companion fixed frame having crowning and leg-bending tools or dies mounted therein; the distance between the centers of said frames, longitudinally/'of the machine, corresponding with the maximum length of the pin to be produced, and

means, including a plurality of positively revoluble wire-severing cutters, capable of longitudinal adjustment bodily for positioning the cutters nearer to or farther from the center of the first named frame.

16. In a machine of the character described, provided with wire-feeding mechamsm, and means for simultaneously severing the wire unit and pointing its adjacent end and that of. the standing wire, the combinaticn therewith of a movable, longitudinally'extending guide-plate having a groove therein alining with and adapted to receive the advance end portion of the wire before itis severed from the stock, a stop suitably 'positioned in the forward portion of said groeve, and a device adapted to frictionally engage the unit or blank and advance it against the stop.

17. In a machine of t-hecharacter described, the combination of a laterally movable guide-plate. provided with a longitudinal groove adapted to receive a unit or length of wire, a small friction wheel revolubly mounted on the lower side of and carried by the plate, the periphery of the wheel extending into said groove and adapted to support thewire at that point, a continuously revoluble, yieldingly lmounted companion upper friction wheel having its rim 'adapted to engage the wire, checo-action of both wheels serving to automatically advance the wire unit lying in the grooved part of" the plate, and a stop positioned to arrest the endwise movement ofthe unit. 

